Jerin sake kunnawa na Karfe | Sabunta 2021

Tafiya daga ƙasa zuwa saman teburin karafan

• Inara yawan aiki
• Rasa wutar lantarki (iskar gas) mafi sauƙin samar da ions masu kyau
• Corrode ko lalatasu da sauƙi
• Nemi karin makamashi (da hanyoyi daban-daban) don keɓewa daga mahaɗan su
• Zama wakilai masu rage karfi (masu ba da lantarki).

Amsawa da ruwa da acid

Alsananan ƙarfe masu tasiri, kamar sodium, zasu amsa tare da ruwan sanyi don samar da hydrogen da ƙarfe hydroxide:

2Na + 2H₂O => 2NaOH + H₂

Karafa a tsakiyar jerin abubuwan sake motsi, kamar su baƙin ƙarfe, zasu yi aiki tare da acid kamar su sulfuric acid (amma ba ruwa a yanayin zafi na al'ada) don ba hydrogen da gishirin ƙarfe, kamar ƙarfe (II) sulfate:

Fe + H da₂SO₄ => KYAUTA₄ + H₂

Yanayin ƙaura guda ɗaya

Nailarfin baƙin ƙarfe a cikin maganin sulphate na jan ƙarfe zai iya canza launi ba da daɗewa ba kamar yadda aka rufe ƙarfen ƙarfe da baƙin ƙarfe (II) sulphate.

Fe + CuSO₄ => Cu + FeSO₄

Gabaɗaya, kowane ɗayan ƙaramin da yake karami a cikin jerin reactivity za'a iya maye gurbinsa da ƙarfe: ƙarfe mafi girma yana rage ƙananan ions ƙarfe. Ana amfani da wannan don aikin zafin jiki don samar da ƙananan ƙarfe na ƙarfe da kuma shirya titanium ta hanyar kroll tsari (Ti kusan daidai yake da Al a cikin jerin abubuwan haɓakawa). Misali, iron (III) oxide an rage shi zuwa ƙarfe kuma ana canza sinadarin aluminium a cikin wannan tsari.

2Al + Fe₂O₃ -> 2Fe + Al₂O₃

Hakanan, cire titanium daga tetrachloride ana iya samun shi ta amfani da magnesium, wanda a ƙarshe yake samar da magnesium chloride:

2Mg + TiCl₄ => Ti + 2MgCl₂

Sauran dalilai na iya, duk da haka, shiga cikin wasa yayin da za'a iya shirya potassium na ƙarfe ta hanyar rage sodium potassium chloride zuwa 850 ° C. Kodayake sodium a cikin jerin reactivity bai kai potassium ba, aikin zai iya ci gaba tunda potassium yana da iya canzawa kuma cakuda ya narke.

Na + KCl => K + NaCl